11
£792.45
  • × Timco Copper Slate StrapsTimco Copper Slate Straps 1 × £11.29
  • × This image displays the front of the product which is a Soudal PVCu Solvent Frame Cleaner - 1LSoudal PVCu Solvent Frame Cleaner - 1L 1 × £5.99
  • × Code 6 Lead FlashingALM Code 6 Milled Lead Flashing - 850mm x 6m 1 × £433.30
  • × Code 6 Lead FlashingALM Code 6 Milled Lead Flashing - 240mm x 6m 1 × £121.78
  • × Soudal Window & Door Expanding Foam - Genius Gun Max 600ml ChampagneSoudal Window & Door Expanding Foam - Genius Gun Max 600ml Champagne 1 × £8.99
  • × OX Pro Gauging Trowel - 7" / 180mmOX Pro Gauging Trowel - 7" / 180mm 1 × £13.39
  • × Timco FirmaHold Collated Clipped Head Nails - Gun Nails (3.1mm x 90mm)Timco FirmaHold Collated Clipped Head Nails - Gun Nails (3.1mm x 90mm) 1 × £27.99
  • × This image displays the front of the product which is a Everbuild All Purpose Ready Mixed Filler - 1kgEverbuild All Purpose Ready Mixed Filler - 1kg 1 × £7.99
  • × This image displays the front of the product which is a Everflex Premium+ 450 Builders Silicone - 300ml (Box of 25)Everflex Premium+ 450 Builders Silicone – Grey 300ml (Box of 25) 1 × £132.50
  • × Lead Sheet Restorer - G3Lead Sheet Restorer - G3 1 × £16.95
  • × Soudal Degrip All Spray – 300mlSoudal Degrip All Spray – 300ml 1 × £12.29

Subtotal: £792.45

View basketCheckout

Bank Holiday Notice: Orders placed after 2:00 PM on Friday, August 23rd, will be shipped on Tuesday, August 27th.

11
£792.45
  • × Timco Copper Slate StrapsTimco Copper Slate Straps 1 × £11.29
  • × This image displays the front of the product which is a Soudal PVCu Solvent Frame Cleaner - 1LSoudal PVCu Solvent Frame Cleaner - 1L 1 × £5.99
  • × Code 6 Lead FlashingALM Code 6 Milled Lead Flashing - 850mm x 6m 1 × £433.30
  • × Code 6 Lead FlashingALM Code 6 Milled Lead Flashing - 240mm x 6m 1 × £121.78
  • × Soudal Window & Door Expanding Foam - Genius Gun Max 600ml ChampagneSoudal Window & Door Expanding Foam - Genius Gun Max 600ml Champagne 1 × £8.99
  • × OX Pro Gauging Trowel - 7" / 180mmOX Pro Gauging Trowel - 7" / 180mm 1 × £13.39
  • × Timco FirmaHold Collated Clipped Head Nails - Gun Nails (3.1mm x 90mm)Timco FirmaHold Collated Clipped Head Nails - Gun Nails (3.1mm x 90mm) 1 × £27.99
  • × This image displays the front of the product which is a Everbuild All Purpose Ready Mixed Filler - 1kgEverbuild All Purpose Ready Mixed Filler - 1kg 1 × £7.99
  • × This image displays the front of the product which is a Everflex Premium+ 450 Builders Silicone - 300ml (Box of 25)Everflex Premium+ 450 Builders Silicone – Grey 300ml (Box of 25) 1 × £132.50
  • × Lead Sheet Restorer - G3Lead Sheet Restorer - G3 1 × £16.95
  • × Soudal Degrip All Spray – 300mlSoudal Degrip All Spray – 300ml 1 × £12.29

Subtotal: £792.45

View basketCheckout

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Trowel Mastic

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Showing all 12 results

Bond It Trowel Mastic - Black 5L

£21.99 Incl VAT £18.33 Excl VAT

Everbuild Trowel Mastic – 6kg

From: £17.90 Incl VAT £14.92 Excl VAT

Everbuild Trowel Mastic – 3kg

From: £14.99 Incl VAT £12.49 Excl VAT

Bond It Trowel Mastic - Black 2.5L

£16.99 Incl VAT £14.16 Excl VAT

Cromar Bitumen Trowel Mastic - Black 1L

£14.94 Incl VAT £12.45 Excl VAT

Bond It Trowel Mastic - Black 1L

£10.99 Incl VAT £9.16 Excl VAT

Cromar Bitumen Trowel Mastic - Black 2.5L

£20.11 Incl VAT £16.76 Excl VAT

Cromar Bitumen Trowel Mastic - Black 5L

£27.54 Incl VAT £22.95 Excl VAT

Evo-Stik Vallance Trowel Mastic Red – 5kg

£34.57 Incl VAT £28.81 Excl VAT

Frequently Asked Questions (3)

Bitumen trowel mastic is a black, heavily filled bituminous compound reinforced with fibres. In spite of the product's surface membrane, it remains soft below to allow moderate movement.
Trowel mastic is made for perimeter pointing around wood and metal window and door frames which aid in waterproofing your home.
To apply it, use a trowel or a troweling knife. The surface should be pointed to a smooth finish immediately after application.

Trowel Mastic

Trowel mastic is made for perimeter pointing around wood and metal window and door frames. Trowel mastic comes in various sizes including 3kg, 6kg, 1l, 2.5l and 5 litre — depending on the product and the brand.

What is Bitumen Trowel Mastic?

Bitumen trowel mastic is a black, heavily filled bituminous compound reinforced with fibres. In spite of the product’s surface membrane, it remains soft below to allow moderate movement. Can be used as a sealant or a filler for mastic asphalt, roofing felt, corrugated iron, metal gutters, and downpipes.

Applying Trowel Mastic

Before using Trowel Mastic, make sure that all surfaces are be clean, dry, and free from dirt, dust, grease, and other contamination. To apply it, use a trowel or a troweling knife. The surface should be pointed to a smooth finish immediately after application. Surface drying occurs within 7 days, followed by gradual drying of the cross-section. After use, flatten the surface of the mastic and replace the polythene disc, ensuring the container is properly sealed.

After using the trowel, make sure that you clean tools and equipment immediately after use with white spirit. Hardened material can only be removed by mechanical means. Do not use solvents to remove from hands/skin – use soap and water with the aid of Wonder Wipes.